VIBRATIONAL SPECTROSCOPY OF INDIUM-DOPED PB0.9MN0.1TE ALLOY

Authors
ROMCEVIC N POPOVIC ZV KHOKHLOV DR IVANCHIK II NIKORICH AV KONIG W
Citation
N. Romcevic et al., VIBRATIONAL SPECTROSCOPY OF INDIUM-DOPED PB0.9MN0.1TE ALLOY, Zeitschrift fur Physik. B, Condensed matter, 104(3), 1997, pp. 475-479
Citations number
23
Journal title
Zeitschrift fur Physik. B, Condensed matter → ACNP
ISSN journal
07223277
Volume
104
Issue
3
Year of publication
1997
Pages
475 - 479
Database
ISI
SICI code
0722-3277(1997)104:3<475:VSOIPA>2.0.ZU;2-G
Abstract
Raman scattering and far-infrared reflection spectra of 0.5 at.% In do ped Pb0.9Mn0.1Te single crystal at temperatures between 10 and 300 K a re presented. The infrared spectra have been fitted using a modified p lasmon-phonon interaction model with an additional oscillator (at abou t 122 cm(-1)) representing a local In-impurity mode. Phonons in this m ixed crystal exhibit intermediate mode behavior. The plasma frequency decreases on cooling from 300 to 25 K and increases sharply between 20 and 10 K. The results of galvanomagnetic measurements are also presen ted.